Грађанска права (Serbian Wikipedia)

Greenberg, D. (1992), Education in America – A View from Sudbury Valley, Greenberg, Daniel (1992). „'Ethics' is a Course Taught By Life Experience.”. Education in America: A View from Sudbury Valley. The Sudbury Valley School. ISBN 9781888947076. Retrieved June 25, 2010.
Greenberg, D. (1987), The Sudbury Valley School Experience, „Teaching Justice Through Experience.”. The Sudbury Valley School Experience. The Sudbury Valley School. 1992. ISBN 9781888947014. Retrieved June 25, 2010.
Greenberg, D. (1992), Education in America – A View from Sudbury Valley, Greenberg, Daniel (1992). „Democracy Must be Experienced to be Learned.”. Education in America: A View from Sudbury Valley. The Sudbury Valley School. ISBN 9781888947076. Retrieved June 25, 2010.

lambdalegal.org (Global: low place; Serbian: low place)

Summary of LGBT civil rights protections, by state, at Lambda Legal, lambdalegal.org

„Human Rights: 1500–1760 – Background”. Nationalarchives.gov.uk. Приступљено 11. 2. 2012.

The Civil Rights act of 1964, . 9. 4. 2021 https://web.archive.org/web/20190322210641/https://www.ourdocuments.gov/doc.php?flash=true&doc=97. Архивирано из оригинала 22. 03. 2019. г. Приступљено 28. 06. 2020. Текст „Milestone Documents” игнорисан (помоћ); Недостаје или је празан параметар |title= (помоћ)

Greenberg, D. (1987) „Chapter 35, "With Liberty and Justice for All,"”. Архивирано из оригинала 11. 05. 2011. г. Приступљено 28. 06. 2020. Free at Last – The Sudbury Valley School. Retrieved June 25, 2010.
Greenberg, D. (1987) The Sudbury Valley School Experience „"Back to Basics – Moral basics."”. Архивирано из оригинала 11. 05. 2011. г. Приступљено 28. 06. 2020. Retrieved June 25, 2010.

The Civil Rights act of 1964, . 9. 4. 2021 https://web.archive.org/web/20190322210641/https://www.ourdocuments.gov/doc.php?flash=true&doc=97. Архивирано из оригинала 22. 03. 2019. г. Приступљено 28. 06. 2020. Текст „Milestone Documents” игнорисан (помоћ); Недостаје или је празан параметар |title= (помоћ)
Americans with Disabilities Act of 1990, „accessboard.gov”. Архивирано из оригинала 20. 07. 2013. г. Приступљено 28. 06. 2020.
Greenberg, D. (1987) „Chapter 35, "With Liberty and Justice for All,"”. Архивирано из оригинала 11. 05. 2011. г. Приступљено 28. 06. 2020. Free at Last – The Sudbury Valley School. Retrieved June 25, 2010.
Greenberg, D. (1987) The Sudbury Valley School Experience „"Back to Basics – Moral basics."”. Архивирано из оригинала 11. 05. 2011. г. Приступљено 28. 06. 2020. Retrieved June 25, 2010.